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Old 04-07-2014, 09:16 AM   #26 (permalink)
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Originally Posted by mechman600 View Post
Did you include the capacitors that are in the datasheet? Omitting them would certainly cause erratic readings.

The 47nF cap between 0V and 5V isn't necessary because the arduino already has a much larger cap between its 5V and ground. But the 4.7nF cap between output and 0V will no doubt smooth out signal irregularities.
Its been a while so I'm not absolutely sure. I believe I did. In any case, I suggest testing things to make sure they're accurate before you go driving off into the sunset.

You're doing a great job! I look forward to more updates.
Current project: A better alternator delete
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